Thank you for helping to wash away the apprehension I had about taking an engine apart. Seeing someone else do it gives me confidence that I can do it too.

I love the way those engines sound and run, but can't deal with the flow fuel glop and mess. Thanks for the video!

At 9:45 into video, I was expecting you to show bearing below cam follower removed. Is that bearing pressed in? If so , how is it removed (pulled out)

I notice that your OS91 has horizontal screw mountings for the intake manifold to the head, as opposed to diagonal. I believe that may be an OS91 ver 1 surpass. I have the same engine I acquired but it has the OS91ver2 head which has the diagonal intake mounting pattern for the screws. Unfortunately, the intake manifold for the vers 2 has a diameter of .440 in and the carb for the OS vers 1 has a inner diameter of .400in so I cannot use the vers2 intake manifold on the vers1. What this means is I either have to change the head to a vers1 (which I cannot find anywhere) or change the carb to a vers 2. Would you by any chance happen to have a source for the vers 1 head and valve assembly (unless the valve assembly is the same)? Thanks in advance

I am stuck with tghe same problem, how did Yiou solve it?

Hey Dave I’m having a problem finding your email address. I need some help with my 91 surpass. Thanks for your response

Why replace the bearings on such a low run time engine ?